Summary Of Straight-line Amortize Expenses Over Term Of Lease (Details) $ in Thousands	Jan. 01, 2019 CAD ($)
Disclosure Of Significant Accounting Policies [Abstract]
Operating lease commitment at December 31, 2018	$ 67,392
Discounted using the incremental borrowing rate at January 1, 2019	54,517
Extension options reasonably certain to be exercised	18,947
Lease obligation	$ 73,464

The amount of liabilities related to the entity's leases. Lease is a contract, or part of a contract, that conveys the right to use an underlying asset for a period of time in exchange for consideration.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 16
-IssueDate 2019-01-01
-Paragraph 47
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2019-en-r&anchor=para_47_b&doctype=Standard
-URIDate 2019-03-27

Name:	ifrs-full_LeaseLiabilities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant